Two-way Tables
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The passenger numbers for a plane flight are shown in the two-way table.
\begin{array}{|c|c|c|}
\hline & \text { Adult } & \text { Child } \\
\hline \text { First Class } & 11 & 1 \\
\hline \text { Business Class } & 24 & 3 \\
\hline \text { Economy Class } & 52 & 9 \\
\hline
\end{array}
If a passenger is chosen at random, find the probability (as a decimal) that the passenger is an adult but not in first class.
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